# Acceleration problem

1. Oct 9, 2006

### sapiental

A particle moves with acceleration a(t) = cos(t)+3

Intital velocity v(0)= 5
initial position s(0) =3

a) fin velocity of particle at time t

v(t) = sin(t)+3t+C
plugging 0 for t I get C = 5

s(t) = -cos(t) + 3/2t^2 + 5t + C
plugging 0 for s I get C = 3

b) What is the total distance traveled from t = pi to t = 2pi

integral pi to 2pi = v(t) = sin(t)+3t+5
= s(2pi)-s(pi)

Thanks!

2. Oct 9, 2006

### dextercioby

I think the "C" in the x(t) is 4 and not 3.

$\cos 0=1$

Daniel.